<html>
 <head>
 <title>Django page</title>
 </head>
 <body>
 <h1>发布会管理</h1>
 <form method="post" action="">
    {% csrf_token %}
    <input name="username" type="text" placeholder="username"><br>
    <input name="password" type="password" placeholder="password"><br>
  <button id="btn" type="submit">登录</button>
 </form>
 </body>
</html>